### Abstract

Original language | English |
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Title of host publication | Proceedings of the First International Conference on Mining Geomechanical Risk |

Editors | Johan Wesseloo |

Place of Publication | Perth |

Publisher | Australian Centre for Geomechanics |

Pages | 273-288 |

ISBN (Electronic) | 978098763815 |

Publication status | Published - 9 Apr 2019 |

Event | 1st International Conference on Mining Geomechanical Risk - Novotel Langley Perth Hotel, Perth, Australia Duration: 9 Apr 2019 → 11 Apr 2019 https://mgr2019.com/ |

### Conference

Conference | 1st International Conference on Mining Geomechanical Risk |
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Country | Australia |

City | Perth |

Period | 9/04/19 → 11/04/19 |

Internet address |

### Fingerprint

### Cite this

*Proceedings of the First International Conference on Mining Geomechanical Risk*(pp. 273-288). [1905-15] Perth: Australian Centre for Geomechanics.

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*Proceedings of the First International Conference on Mining Geomechanical Risk.*, 1905-15, Australian Centre for Geomechanics, Perth, pp. 273-288, 1st International Conference on Mining Geomechanical Risk, Perth, Australia, 9/04/19.

**Construction of a damage risk model for footwall drifts.** / Andrijasevich, Jake; Basarir, Hakan; Wesseloo, Johan.

Research output: Chapter in Book/Conference paper › Conference paper

TY - GEN

T1 - Construction of a damage risk model for footwall drifts

AU - Andrijasevich, Jake

AU - Basarir, Hakan

AU - Wesseloo, Johan

PY - 2019/4/9

Y1 - 2019/4/9

N2 - Current design of underground mine openings involves a great deal of uncertainty as the geotechnical domains in which mines operate are non-homogenous and highly variable in nature. Current industry practice largely follows a deterministic, Factor of Safety based approach. However, final decisions in mining operations are based on both risk and financial cost, rather than probability distributions or Factor of Safety. The overall aim of the paper is to create a damage risk model for footwall drifts in a mine using the sublevel caving production method. Both numerical and probabilistic outcomes were used to evaluate and assess risk with the aid of a risk matrix. A number of parameters including rock properties, mining-induced stresses and the location of a drift relative to the weakness zone were considered. A special emphasis was placed on the economic consequences of the assessed risk and failure potential, described in terms of drift convergence. Considered economic consequences include rehabilitation, time duration, production loss exposure and delay flexibility, with particular focus applied to shareholder value and public reputation (PR). The associated costs were then compared to find the optimum location for the drift. Keywords: risk-based design, probabilistic design, uncertainty, risk model.

AB - Current design of underground mine openings involves a great deal of uncertainty as the geotechnical domains in which mines operate are non-homogenous and highly variable in nature. Current industry practice largely follows a deterministic, Factor of Safety based approach. However, final decisions in mining operations are based on both risk and financial cost, rather than probability distributions or Factor of Safety. The overall aim of the paper is to create a damage risk model for footwall drifts in a mine using the sublevel caving production method. Both numerical and probabilistic outcomes were used to evaluate and assess risk with the aid of a risk matrix. A number of parameters including rock properties, mining-induced stresses and the location of a drift relative to the weakness zone were considered. A special emphasis was placed on the economic consequences of the assessed risk and failure potential, described in terms of drift convergence. Considered economic consequences include rehabilitation, time duration, production loss exposure and delay flexibility, with particular focus applied to shareholder value and public reputation (PR). The associated costs were then compared to find the optimum location for the drift. Keywords: risk-based design, probabilistic design, uncertainty, risk model.

KW - risk‐based design

KW - probabilistic design

KW - uncertainty

KW - risk modelling

M3 - Conference paper

SP - 273

EP - 288

BT - Proceedings of the First International Conference on Mining Geomechanical Risk

A2 - Wesseloo, Johan

PB - Australian Centre for Geomechanics

CY - Perth

ER -